pw keeps setting /etc/group to 0600

[Mateusz Guzik]

On Sat, Nov 17, 2012 at 11:20:21AM -0500, Ryan Stone wrote:
> Wow.  So apparently things are even more broken than I though.  Let's play,
> "What group am I in?"
> 
> root at group-testing:/usr/home/rstone # cd /tmp
> root at group-testing:/tmp # pw groupadd testing
> root at group-testing:/tmp # mkdir testdir
> root at group-testing:/tmp # chown root:testing testdir/
> root at group-testing:/tmp # chmod g+rwx testdir/
> root at group-testing:/tmp # pw usermod
> root at group-testing:/tmp # pw groupmod testing -m rstone
> root at group-testing:/tmp # id rstone
> uid=1001(rstone) gid=1001(rstone) groups=1001(rstone),0(wheel),1002(testing)
> root at group-testing:/tmp # exit
> $ id
> uid=1001(rstone) gid=1001 groups=1001,0
> $ id rstone
> uid=1001(rstone) gid=1001 groups=1001
> $ touch /tmp/testdir/testfile
> touch: /tmp/testdir/testfile: Permission denied
> $ ls -ld /tmp/testdir/
> drwxrwxr-x  2 root  1002  512 Nov 17 11:07 /tmp/testdir/
> 

This is not a bug and I think it always was this way. The process you used
to su/sudo/whatever to root was not in testing group and didn't
magically enter it after you added rstone user to that group. You have
to log in again or do stuff like exec su - rstone.

-- 
Mateusz Guzik <mjguzik gmail.com>